Flame resistant spun staple yarns made from blends of fibers...

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

Reexamination Certificate

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Details

C428S365000, C428S920000, C428S921000, C442S136000, C442S181000, C442S302000

Reexamination Certificate

active

07618707

ABSTRACT:
This invention relates to a flame-resistant spun staple yarns and fabrics and garments comprising these yarns and methods of making the same. The yarns have 50 to 95 parts by weight of a polymeric staple fiber containing a structure derived from a monomer selected from the group consisting of 4,4′diaminodiphenyl sulfone, 3,3′diaminodiphenyl sulfone, and mixtures thereof; and 5 to 50 parts by weight of a polyoxadiazole fiber or greater, based on the total amount of the polymeric fiber and the polyoxadiazole fiber in the yarn.

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patent: 3227793 (1966-01-01), Cipriani
patent: 3287324 (1966-11-01), Sweeny
patent: 3414645 (1968-12-01), Morgan, Jr.
patent: 3767756 (1973-10-01), Blades
patent: 3803453 (1974-04-01), Hull
patent: 3869429 (1975-03-01), Blades
patent: 3869430 (1975-03-01), Blades
patent: 4169932 (1979-10-01), Sokolov et al.
patent: 4202962 (1980-05-01), Bach
patent: 4612150 (1986-09-01), DeHowitt
patent: 5468537 (1995-11-01), Brown et al.
patent: 5667743 (1997-09-01), Tai et al.
patent: 2007/0099533 (2007-05-01), Ma
patent: 2008/0057807 (2008-03-01), Tutterow et al.
patent: 1389604 (2003-01-01), None
patent: 1631941 (2005-06-01), None
patent: WO 00/77283 (2000-12-01), None

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